Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual nação tem o sindicato America 3 Foundation e o iate jayhawk?
 ###Tabelas: CREATE TABLE competing_yachts (competing_yachts_id AUTO_INCREMENT PRIMARY KEY, Sail VARCHAR, Yacht VARCHAR, Syndicate VARCHAR, Yacht Club VARCHAR, Nation VARCHAR) CREATE TABLE rank_by_number_of_wins (rank_by_number_of_wins_id AUTO_INCREMENT PRIMARY KEY, City & Nation VARCHAR, First Place INT, Second Place INT, Third Place INT, Total Top 3 Placements INT, First Place Winning Year(s) (if applicable) VARCHAR) CREATE TABLE dfb_cup_appearances (dfb_cup_appearances_id AUTO_INCREMENT PRIMARY KEY, Season VARCHAR, Round VARCHAR, Date VARCHAR, Home VARCHAR, Away VARCHAR, Result VARCHAR) CREATE TABLE summer (summer_id AUTO_INCREMENT PRIMARY KEY, Year VARCHAR, Edition VARCHAR, Host city VARCHAR, Gold INT, Silver INT, Bronze INT, Total INT) CREATE TABLE performance_by_nation (performance_by_nation_id AUTO_INCREMENT PRIMARY KEY, Rank VARCHAR, Gold INT, Silver INT, Bronze INT, Total INT)  
SELECT Nation FROM competing_yachts WHERE Syndicate = america 3 foundation AND Yacht = jayhawk